Desa GMP16 - Manual (Page 22)

www.desatech.com 113048-01C 22
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Yellow flame during burner com-
bustion
Slight smoke or odor during ini-
tial operation
Heater produces a whistling noise
when burner is lit
White powder residue forming
within burner box or on adjacent
walls or furniture
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
3. Clogged or dirty burner
1. Residues from manufactur-
ing processes
1. Turning control knob to HI
or to position 5 when burner
is cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
REMEDY
1. Check burner for dirt and de-
bris. If found, clean burner
(see Cleaning and Mainte-
nance, page 19)
2. Replace gas regulator
3. Clean burner (see Cleaning
and Maintenance, page 19)
1. Problem will stop after a few
hours of operation
1. Turn control knob to LO or
position 1 and let warm up for
a minute
2. Operate burner until air is re-
moved from line. Have gas
line checked by local propane/
LP gas company
3. Observe minimum installation
clearances (see Figure 4, page 8)
4. Clean burner (see Cleaning
and Maintenance, page 19) or
replace burner orifice
1. Turn heater off when using
furniture polish, wax, carpet
cleaners, or similar products